18386613

素因数分解:

$3^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:434

約数の個数: 36

約数和(自身を含む): 31202028

約数和(自身を除く): 12815415

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 173, 241, 441, 519, 723, 1211, 1557, 1687, 2169, 3633, 5061, 8477, 10899, 11809, 15183, 25431, 35427, 41693, 76293, 106281, 125079, 291851, 375237, 875553, 2042957, 2626659, 6128871, 18386613]

約数ペア:

[(1, 18386613), (3, 6128871), (7, 2626659), (9, 2042957), (21, 875553), (49, 375237), (63, 291851), (147, 125079), (173, 106281), (241, 76293), (441, 41693), (519, 35427), (723, 25431), (1211, 15183), (1557, 11809), (1687, 10899), (2169, 8477), (3633, 5061)]